/// <summary>
/// Reads one file to fill the db
/// </summary>
/// <param name="db">The navDatabase to fill</param>
/// <param name="fName">The qualified filename</param>
/// <returns>The result string, either empty or error</returns>
private static string ReadDbFile(ref icaoDatabase db, string fName)
{
if (!File.Exists(fName))
{
return($"File {fName} does not exist\n");
}
var icaoPre = Path.GetFileNameWithoutExtension(fName).ToUpperInvariant();
string ret = "";
using (var sr = new StreamReader(fName)) {
string buffer = sr.ReadToEnd( );
buffer = buffer.Replace("\n", "").Replace("\r", "").Trim( ); // cleanup any CR, LFs and whitespaces
buffer = buffer.Substring(1); // skip enclosing {
var fragment = JsonParser.ExtractFragment(buffer);
while (!string.IsNullOrEmpty(fragment))
{
buffer = buffer.Substring(fragment.Length + 1); // remove extracted + comma
var rec = FromNative(fragment);
rec.AddPrefix(icaoPre); // make it a valid one - the FA db icao is without the prefix from the file...
if (rec.IsValid)
{
ret += db.Add(rec); // collecting add information
}
fragment = JsonParser.ExtractFragment(buffer);
}
}
return(ret);
}
/// <summary>
/// Reads all data from the given file
/// </summary>
/// <param name="db">The icaoDatabase to fill</param>
/// <param name="fName">A fully qualified name</param>
/// <returns>The result string, either empty or error</returns>
public static string ReadDb(ref icaoDatabase db, string fName)
{
if (!File.Exists(fName))
{
return($"File {fName} does not exist\n");
}
string ret = "";
using (var sr = new StreamReader(fName)) {
string buffer = sr.ReadLine( ); // header line
buffer = sr.ReadLine( );
while (!sr.EndOfStream)
{
var rec = FromNative(buffer);
if (rec.IsValid)
{
ret += db.Add(rec); // collect adding information
}
buffer = sr.ReadLine( );
}
//
}
return(ret);
}
/// <summary>
/// Reads one db file
/// </summary>
/// <param name="db">The icaoDatabase to fill from the file</param>
/// <param name="fName">The qualified filename</param>
/// <returns>The result string, either empty or error</returns>
private static string ReadDbFile(ref icaoDatabase db, string fName)
{
var icaoPre = Path.GetFileNameWithoutExtension(fName);
string ret = "";
using (var sr = new StreamReader(fName)) {
string buffer = sr.ReadLine( ); // header line
buffer = sr.ReadLine( );
while (!sr.EndOfStream)
{
var rec = FromNative(buffer);
if (rec.IsValid)
{
ret += db.Add(rec); // collect adding information
}
buffer = sr.ReadLine( );
}
//
}
return(ret);
}